Overview
The ADM3483ARZ-REEL7 is a 3.3 V slew rate limited, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. This component is designed for low power consumption and is suitable for various industrial and commercial applications. It operates with a single 3.3 V power supply and is interoperable with 5 V logic, making it versatile for different system designs. The transceiver is fully compliant with EIA RS-485 and RS-422 standards over the full common-mode range and supports data rates up to 250 kbps.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADM3483ARZ-REEL7 |
| Package | SOIC-8 |
| Supply Voltage | 3.3 V |
| Data Rate | Up to 250 kbps |
| Mode | Half-Duplex |
| Compliance | EIA RS-485 and RS-422 |
| Common-Mode Range | -7 V to +12 V |
| Temperature Range | -40°C to +85°C |
| Shutdown Current | 2 nA |
| Receiver Input Impedance | 12 kΩ |
Key Features
- Slew rate limited drivers to minimize EMI and reduce reflections caused by improperly terminated cables.
- Low power consumption with a shutdown mode, making it ideal for power-sensitive applications.
- Interoperable with 5 V logic.
- Full compliance with EIA RS-485 and RS-422 standards over the full common-mode range.
- Supports up to 32 transceivers on the bus.
- Thermal shutdown circuit to prevent excessive power dissipation.
- Fail-safe feature in the receiver results in a logic high output state if inputs are unconnected (floating).
Applications
- Telecom applications.
- Industrial process control.
- HVAC (Heating, Ventilation, and Air Conditioning) systems.
- Low power RS-485/RS-422 applications.
- Multipoint bus transmission lines.
- Daisy-chain network topology or point-to-point applications.
Q & A
- What is the primary function of the ADM3483ARZ-REEL7? The ADM3483ARZ-REEL7 is a 3.3 V slew rate limited, half-duplex RS-485/RS-422 transceiver.
- What is the operating voltage of the ADM3483ARZ-REEL7? The operating voltage is 3.3 V.
- What is the maximum data rate supported by the ADM3483ARZ-REEL7? The maximum data rate is up to 250 kbps.
- Is the ADM3483ARZ-REEL7 compliant with RS-485 and RS-422 standards? Yes, it is fully compliant with EIA RS-485 and RS-422 standards.
- What is the common-mode range of the ADM3483ARZ-REEL7? The common-mode range is -7 V to +12 V.
- How many transceivers can be connected on the bus? Up to 32 transceivers can be connected on the bus.
- What is the purpose of the thermal shutdown circuit in the ADM3483ARZ-REEL7? The thermal shutdown circuit prevents excessive power dissipation caused by bus contention or output shorting.
- What happens if the inputs are unconnected (floating) in the receiver? The receiver contains a fail-safe feature that results in a logic high output state.
- In what temperature range is the ADM3483ARZ-REEL7 specified? The component is specified over the -40°C to +85°C temperature range.
- What is the shutdown current of the ADM3483ARZ-REEL7? The shutdown current is 2 nA.
